Biomedical subjects

Rudy E Vuchinich

Publications and source records attributed to Rudy E Vuchinich.

10 recordsLinked to original sources

PubMed2006

Significance of a behavioral economic index of reward value in predicting drinking problem resolution.

This study investigated whether a behavioral economic index of the value of rewards available over different time horizons improved prediction of drinking outcomes beyond established biopsychosocial predictors. Preferences for immediate drinking versus more delayed rewards made possible by saving money were determined from expenditures prior to resolution attempts by problem drinkers with different help-seeking experiences (N = 144). As hypothesized, stable resolutions over a 2-year follow-up were associated with proportionally more preresolution discretionary expenditures on savings and less on alcohol compared with unstable resolutions. The relationship held regardless of help-seeking history, and preresolution drinking practices, problems, and income were similar across outcomes. The findings extend experimental work on behavioral economics and indicate that measuring monetary allocation improves prediction of outcomes.

Alcohol Drinking↗

PubMed2005

Using behavioral theories of choice to predict drinking outcomes following a brief intervention.

Behavioral theories of choice predict that substance use is partly a function of the relative value of drugs in relation to other available reinforcers. This study evaluated this hypothesis in the context of predicting drinking outcomes following an alcohol abuse intervention. Participants (N = 54, 69% female, 31% male) were college student heavy drinkers who completed a single-session motivational intervention. Students completed a baseline measure of substance-related and substance-free activity participation and enjoyment. Only women showed a significant reduction in drinking at the 6-month follow-up, and the ratio of substance-related to substance-free reinforcement accounted for unique variance in their drinking outcomes. Women who at baseline derived a smaller proportion of their total reinforcement from substance use showed lower levels of follow-up drinking, even after the authors controlled for baseline drinking level. Male and female participants who reduced their drinking showed increased proportional reinforcement from substance-free activities.

Adolescent↗

PubMed2005

To house or not to house: the effects of providing housing to homeless substance abusers in treatment.

OBJECTIVES: Housing typically is not provided to homeless persons during drug abuse treatment. We examined how treatment outcomes were affected under 3 different housing provision conditions. METHODS: We studied 196 cocaine-dependent participants who received day treatment and no housing (NH), housing contingent on drug abstinence (ACH), or housing not contingent on abstinence (NACH). Drug use was monitored with urine testing. RESULTS: The ACH group had a higher prevalence of drug abstinence than the NACH group (after control for treatment attendance), which in turn had a higher prevalence than the NH group. All 3 groups showed significant improvement in maintaining employment and housing. CONCLUSIONS: The results of this and previous trials indicate that providing abstinence-contingent housing to homeless substance abusers in treatment is an efficacious, effective, and practical intervention. Programs to provide such housing should be considered in policy initiatives.

Adult↗

PubMed2004

Different variables are associated with help-seeking patterns and long-term outcomes among problem drinkers.

This study investigated variables associated with help-seeking for drinking problems and with long-term drinking outcomes. In a 3 x 2 design, problem drinkers (N=167) were selected according to their help-seeking history [no assistance (NA), Alcoholics Anonymous (AA) only, or treatment plus AA (TxAA)] and current drinking status [resolved abstinent (RA) for >2 years or non-resolved (NR) active drinkers]. Drinking practices and problems, influences on help-seeking, and life events were assessed retrospectively during structured interviews. Participant reports were verified through collateral or reliability interviews. Stable resolution was associated with heavier drinking and greater negative life events before resolution. Seeking help, especially from treatment, was associated with greater psychosocial problems and higher dependence levels. The results indicate that different dimensions of drinking problems are associated with help-seeking and drinking outcomes, and suggest ways to increase help-seeking.

Adult↗

PubMed2004

A factor analytic study of influences on patterns of help-seeking among treated and untreated alcohol dependent persons.

Influences on seeking help from professional alcohol treatment and from Alcoholics Anonymous (AA) were investigated using problem drinkers (N = 167) with different help-seeking experiences (no assistance, AA only, or treatment plus AA) and current drinking statuses (sustained abstinence for > 2 years or active problem drinking). Depending on their help-seeking experiences, participants rated barriers to or reasons for seeking help from treatment and AA, which were factor analyzed. Common impediments to help-seeking included privacy concerns and participants' beliefs that they could solve their problem on their own and that it was not serious enough to seek help. Common reasons for help-seeking included social and other functional problems related to drinking. There were also influences unique to treatment (e.g., cost) and to AA (e.g., group format). Help-seeking factors did not vary by drinking status. The implications for increasing help-seeking among problem drinkers are discussed.

Alcoholics Anonymous↗

PubMed2004

Transitions during effective treatment for cocaine-abusing homeless persons: establishing abstinence, lapse, and relapse, and reestablishing abstinence.

Data are reported on drug use among cocaine-dependent homeless persons who participated in a clinical trial that compared day treatment only (DT, n = 69) with day treatment plus abstinent-contingent housing and work (DT+, n = 72). Drug use was measured with multiple weekly urine toxicologies. Compared with DT participants, more DT+ participants established abstinence, maintained abstinence for longer durations, were marginally significantly more likely to lapse, and significantly less likely to relapse. Of all participants who established abstinence and then relapsed, DT+ participants relapsed later and were more likely to reestablish abstinence. These analyses yield information on the processes involved in the manner in which drug use changes as a result of abstinent-contingent housing and work.

Adult↗

PubMed2004

A comparison of personalized feedback for college student drinkers delivered with and without a motivational interview.

OBJECTIVE: This study evaluated the relative efficacy of personalized drinking feedback (PDF) delivered with and without a motivational interview (MI) for college student drinkers. METHOD: Heavy-drinking college students (N = 54; 691% female) were identified from a large screening sample and randomly assigned either to receive PDF during a single MI session or to receive PDF without an MI. Of these participants, 51 (94%) completed a 6-month follow-up assessment that included measures of alcohol consumption and alcohol-related problems. RESULTS: At 6-months postintervention, participants in both groups showed significant, small to moderate reductions in alcohol consumption, but the groups did not differ. Women showed larger reductions than men. Rates of alcohol-related problems remained relatively unchanged. CONCLUSIONS: The hypothesis that an MI would enhance the efficacy of PDF was not supported.

Adult↗

PubMed2002

Still necessary to state the obvious: comment on Alessi, Roll, Reilly, and Johanson (2002).

S. M. Alessi, J. M. Roll. M. P. Reilly, and C.-E. Johanson's (2002) conclusions initially seemed to the author to unnecessarily state the obvious: that the determinants of drug effects and self-administration are not reducible to events within the body. On reflection, however, the author realized that this conclusion is not obvious to many individuals in the broader scientific, professional, and political environment that surrounds the behavioral pharmacology scientific community. Educating these individuals about the concepts, methods, data, and applied implications of behavioral pharmacology is of paramount importance, and one way to do this is to continue to state the obvious.

Behavior↗

PubMed2002

Predicting natural resolution of alcohol-related problems: a prospective behavioral economic analysis.

This study investigated whether the relative allocation of discretionary monetary expenditures to alcoholic beverages versus savings (presumed to reflect relative preferences for immediate vs. delayed rewards) before quitting abusive drinking predicted natural resolution among untreated problem drinkers. Drinking, life events, income, and expenditures were assessed for the year before resolution and again 1 and 2 years later (N = 50). Compared with those who relapsed, participants who remained resolved at 2 years reported proportionally more pre-resolution discretionary expenditures on savings and less on alcohol. Income and expenditures were similar across groups. The findings support the predictive utility of this functional index of relative reward preferences that operate over variable time horizons and suggest that temporal discounting is an important process in addictive behavior change.

Adult↗

PubMed2002

Environmental contexts surrounding resolution of drinking problems among problem drinkers with different help-seeking experiences.

OBJECTIVE: This study investigated whether similar environmental contexts surround abstinent resolutions associated with different intervention experiences, including no assistance. METHOD: Participants were selected in a 3 x 2 design (25-30 per group, N = 167) according to their help-seeking experiences (no assistance, Alcoholics Anonymous [AA] only, treatment plus AA) and current drinking status (resolved abstinent [RA] for >2 years or nonresolved [NR] controls). Life events were assessed retrospectively over a 4-year period that spanned the 2 years before and 2 years after the initiation of stable abstinence by RA participants or over a matched interval for NR participants. Collateral or reliability interviews were conducted for 84% of the sample as checks on participant reports. RESULTS: Across help-seeking groups, RA participants reported decreased negative events and increased positive events from the pre- through the post-resolution period. Interventions, especially treatment, enhanced the postresolution improvements in RA participants' life circumstances. This pattern was absent among NR participants. CONCLUSIONS: The findings suggest that a similar molar environmental context surrounds resolutions achieved with and without interventions and that interventions are associated with enhanced improvements during maintenance.

Adult↗